Lyle,
- On the partial valsalva maneuver you said: "So for a set of 5 repetitions, I want them to treat it as 5 perfect single repetitions with each repetition starting off with a proper inhale and tightening up prior to beginning the eccentric. ". But what do you think of tightening up and inhaling to the belly and doing like 3 repetitions, then tightening up again doing more 2, then doing a few more singles?

- Should you do the valsalva maneuver on singles for a 12 repetition squat?

"Once at the top, regardless of what happened, the lifter should then inhale and perform another partial Valsalva prior to the next repetition. In this context, I tend to cue lifters who are somewhat new to lifting to treat each repetition of the set almost as an individual single. This is both a breathing and setup thing as many lifters start to rush (especially when it gets heavy)."